| Name: | Samrat Biswas |
| Affiliation: | Gauhati University |
| Conference ID: | ASI2025_264 |
| Title: | Multi-wavelength photo-polarimetric study of the intermediate age open cluster NGC 1912 |
| Authors: | Samrat Biswas 1, Biman J Medhi 1, Sushmita Deb 1, Sukanta Deb 2, H S Das 3, G I Perren 4,5
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| Authors Affiliation: | 1 Department of Physics, Gauhati University, Guwahati 781014, India
2 Department of Physics, Cotton University, Guwahati 781001, Assam, India
3 Department of Physics, Assam University, Silchar 788011, India
4 Instituto de Física de Rosario (IFIR-CONICET), Rosario 2000, Argentina
5 Facultad de Ciencias Exactas, Ingeniería y Agrimensura (UNR), Rosario 2000, Argentina |
| Mode of Presentation: | Oral |
| Abstract Category: | Stars, Interstellar Medium, and Astrochemistry in Milky Way |
| Abstract: | In this study we carried out a comprehensive multi-wavelength investigation of the low-galactic latitude open star cluster, NGC 1912, situated towards the anti-galactic center direction. The cluster has been characterized in context of its fundamental and structural parameters, mass distribution, dust properties, and the star formation dynamics. In order to achieve this goal, rigorous statistical techniques have been incorporated into polarimetric, photometric, and astrometric data. Dynamical mass segregation study revealed a concentration of some apparently massive stars towards the cluster center. Polarimetric analysis in B,V, Rc, Ic wavelength bands showed that the Galactic magnetic field plays a dominant role in this region. Many stars in the region showed potential intrinsic polarization and/or rotation in position angle. Dust studies indicated that grain sizes within the intracluster region are comparatively smaller than that of the general ISM. Possibilities of differential extinction in the cluster region was detected. Interestingly, the Near-Infrared extinction map revealed the existence of a potential ‘interstellar bubble’ located close to the cluster region. Along the periphery of this bubble-like region, 16 young stellar objects (YSOs) were detected, suggesting that triggered secondary star formation events might have occurred in this region. |
